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Irwin, MO

Full City Profile · Missouri

3.0 /5.0
B Good
37 Population 123/sq mi density
56°F Avg Temperature 253 sunny days/yr
311 Violent Crime/100K 4,130 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
311 violent crimes/100K
A+
Education
5.0 / 5.0
100.0% bachelor's degree or higher
Irwin enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 31°F in January while summers reach 79°F in July. The area gets 253 sunny days per year. Annual precipitation totals 45.8 inches. The area receives 4.3 inches of snow annually. Air quality is rated Good with a median AQI of 41.

Temperature

31°F Jan (-1°C) 79°F Jul (26°C)
Annual Average56.0°F
4% above US avg
January Average31°F (-1°C)
July Average79°F (26°C)
Sunny Days253 days/yr

Geography

Elevation974 ft (297 m)
Area0.3 sq mi (0.8 km²)
Population Density123/sq mi
Coordinates37.5887°N, 94.2855°W
TimezoneAmerica/Chicago
Nearest AirportJoplin Regional (JLN)
29 miles away

Precipitation & Snow

Annual Rainfall 45.8"
21% above US avg
Snowfall 4.3"
Wettest Month (Jun) 5.43"
Driest Month (Jan) 1.73"

Air Quality

AQI Median41.0
RatingGood

Earthquake History

7 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.3. Most recent: M2.5 on Apr 29, 2018.

May 18, 2005 Missouri M3.3 101 km
Mar 30, 2001 1 km SW of Hermitage, Missouri M3.1 93 km
Jan 21, 1992 5 km SE of Linn Creek, Missouri M3.1 149 km
May 21, 2010 2 km SW of Centerton, Arkansas M2.6 138 km
Apr 4, 2015 3 km ESE of Clinton, Missouri M2.6 98 km
Apr 29, 2018 3 km WNW of Evergreen, Missouri M2.5 146 km
Apr 29, 2010 3 km SW of Centerton, Arkansas M2.5 139 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

531 tornadoes (EF0+) within 100 km since 1950. Strongest: EF5. Total: 224 fatalities, 2,052 injuries.

Date Rating Distance Fatalities
May 22, 2011 EF5 66 km 158
May 10, 2008 EF4 100 km 21
Feb 28, 2007 EF4 94 km 0
May 4, 2003 EF4 74 km 4
Apr 24, 1975 EF4 88 km 3
May 22, 2019 EF3 32 km 3
May 22, 2019 EF3 61 km 0
Mar 12, 2006 EF3 80 km 1
Mar 12, 2006 EF3 81 km 0
Apr 21, 2005 EF3 96 km 0
May 4, 2003 EF3 21 km 5
May 4, 2003 EF3 75 km 7
May 4, 2003 EF3 82 km 5
May 4, 1999 EF3 54 km 0
May 17, 1995 EF3 31 km 0
Apr 29, 1983 EF3 86 km 1
Mar 26, 1983 EF3 41 km 0
Mar 15, 1982 EF3 83 km 0
Mar 15, 1982 EF3 44 km 0
Mar 15, 1982 EF3 46 km 2
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: UNNAMED (3,427 ac, 1986).

Year Name Acres Distance
1986 UNNAMED 3,427 82 km
2006 UNNAMED 2,089 94 km
1991 UNNAMED 2,043 52 km
2005 NR STEELE 1,652 77 km
1988 UNNAMED 1,539 74 km
1996 UNNAMED 1,356 55 km
1996 UNNAMED 1,346 19 km
1996 UNNAMED 1,305 64 km
2006 UNNAMED 1,282 96 km
2006 GRAND 1,067 72 km
1984 RESIDENT 1,048 75 km
1994 UNNAMED 1,045 100 km
1992 UNNAMED 912 98 km
2005 UNNAMED 860 54 km
2000 UNNAMED 802 44 km
2009 REYNOLDS HOLLOW 728 80 km
2006 SALT CREEK MARSH 720 65 km
1996 UNNAMED 636 68 km
2012 FANCY FENCE 626 72 km
1996 UNNAMED 624 65 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 31°F (-1°C) 1.7 in Coldest, Driest
February 36°F (2°C) 2.1 in
March 46°F (8°C) 3.9 in
April 56°F (13°C) 4.3 in
May 65°F (18°C) 5.2 in
June 74°F (23°C) 5.4 in Wettest
July 79°F (26°C) 3.8 in Warmest
August 78°F (25°C) 3.8 in
September 70°F (21°C) 5.1 in
October 58°F (15°C) 4.1 in
November 46°F (8°C) 3.8 in
December 35°F (2°C) 2.6 in

Irwin has a seasonal temperature swing of 48°F / from 31°F in January to 79°F in July. Total annual precipitation is 45.8 inches, with June being the wettest month (5.4") and January the driest (1.7").

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